diff --git a/d3-box/d3-box-tests.ts b/d3-box/d3-box-tests.ts
new file mode 100644
index 0000000000..9c92e1b886
--- /dev/null
+++ b/d3-box/d3-box-tests.ts
@@ -0,0 +1,2 @@
+/// <reference path="../d3/d3.d.ts" />
+/// <reference path="d3-box.d.ts" />
diff --git a/d3-box/d3-box.d.ts b/d3-box/d3-box.d.ts
new file mode 100644
index 0000000000..0db7316cb3
--- /dev/null
+++ b/d3-box/d3-box.d.ts
@@ -0,0 +1,6 @@
+// Type definitions for d3-slider
+// Project: https://github.com/JacksonGariety/d3-box
+// Definitions by: Linkun Chen <https://github.com/lk-chen>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+/// <reference path="../d3/d3.d.ts"/>